Get rid of csv-parser

src/core/CMakeLists.txt

@@ -4,8 +4,6 @@ find_package(Boost 1.62 REQUIRED)
 find_package(SQLite3 REQUIRED)
 
 # Because csv-parser needs threads:
-set(THREADS_PREFER_PTHREAD_FLAG ON)
-find_package(Threads REQUIRED)
 
 find_package(fmt)
 
@@ -25,12 +23,12 @@ set(CORE_SOURCES
 
 
 add_library(core STATIC ${CORE_SOURCES})
-target_include_directories(core PRIVATE ${PROJECT_SOURCE_DIR}/subprojects/csv-parser/single_include)
+#target_include_directories(core PRIVATE ${PROJECT_SOURCE_DIR}/subprojects/csv-parser/single_include)
 if (WIN32)
-    target_link_libraries(core PRIVATE sqlite3 nlohmann_json::nlohmann_json Threads::Threads fmt::fmt)
+    target_link_libraries(core PRIVATE sqlite3 nlohmann_json::nlohmann_json fmt::fmt)
     target_link_libraries(core PRIVATE bcrypt)
 else()
-	target_link_libraries(core PRIVATE sqlite3 nlohmann_json::nlohmann_json Threads::Threads fmt::fmt)
+	target_link_libraries(core PRIVATE sqlite3 nlohmann_json::nlohmann_json fmt::fmt)
 endif()
 
 target_include_directories(core PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/..)

src/core/csvreader.cpp

@@ -3,7 +3,8 @@
 
 #include <fstream>
 
-#include <csv.hpp>
+// #include <csv.hpp>
+#include <boost/algorithm/string.hpp>
 
 #ifdef DELETE
 #undef DELETE
@@ -13,17 +14,16 @@ namespace fs = std::filesystem;
 
 std::size_t CsvReader::readSellersFromFile(const fs::path &filePath, Marketplace *market)
 {
-    csv::CSVFormat format;
-    format.delimiter(';');
 
 #if defined(_WIN64) || defined(_WIN32)
     // Windows: Somhow this is necessary in order to open file names with umlauts
     auto wide = filePath.wstring();
     std::string fileName(wide.begin(), wide.end());
 
-    csv::CSVReader csvReader(fileName, format);
+    std::ifstream infile(fileName);
 #else
-    csv::CSVReader csvReader(filePath.string(), format);
+    // csv::CSVReader csvReader(filePath.string(), format);
+    std::ifstream infile(filePath.string());
 #endif
 
     for (auto &seller : market->getSellers()) {
@@ -32,28 +32,35 @@ std::size_t CsvReader::readSellersFromFile(const fs::path &filePath, Marketplace
 
     market->storeToDb(true);
 
-    for (csv::CSVRow &row : csvReader) {
-        if (!row[0].is_int()) {
+    std::string line;
+
+    while (getline(infile, line)) {
+        std::vector<std::string> strs;
+        boost::split(strs, line, boost::is_any_of(";"));
+
+        auto seller = std::make_unique<Seller>();
+
+        try {
+            int sellerNo = std::stoi(strs[0]);
+            seller->setSellerNo(sellerNo);
+        } catch (std::invalid_argument const &ex) {
             continue;
         }
 
-        auto seller = std::make_unique<Seller>();
-        seller->setSellerNo(row[0].get<int>());
-        if (row[1].is_int()) {
-            seller->setNumArticlesOffered(row[1].get<int>());
-        } else {
+        if (isNumber(strs[1]))
+            seller->setNumArticlesOffered(std::stoi(strs[1]));
+        else
             seller->setNumArticlesOffered(0);
-        }
 
         // If both, first name and last name, are empty, use N. N.
         // Else, use the real values.
-        if (row[2].get<std::string>().empty() && row[3].get<std::string>().empty()) {
+        if (strs[2].empty() && strs[2].empty()) {
             seller->setFirstName("N.");
             seller->setLastName("N.");
         } else {
-            std::string firstName = row[2].get<std::string>();
+            std::string firstName = strs[2];
             seller->setFirstName(trim(firstName));
-            std::string lastName = row[3].get<std::string>();
+            std::string lastName = strs[3];
             seller->setLastName(trim(lastName));
         }
 

src/core/utils.cpp

@@ -61,3 +61,10 @@ bool case_insensitive_match(std::string s1, std::string s2)
         return true; // The strings are same
     return false;    // not matched
 }
+
+bool isNumber(const std::string &str)
+{
+    return !str.empty() && std::find_if(str.begin(), str.end(), [](unsigned char c) {
+                               return !std::isdigit(c);
+                           }) == str.end();
+}

src/core/utils.h

@@ -10,5 +10,6 @@ std::string &ltrim(std::string &str, const std::string &chars = "\t\n\v\f\r ");
 std::string &rtrim(std::string &str, const std::string &chars = "\t\n\v\f\r ");
 std::string &trim(std::string &str, const std::string &chars = "\t\n\v\f\r ");
 bool case_insensitive_match(std::string s1, std::string s2);
+bool isNumber(const std::string &str);
 
 #endif